如何删除未使用的 GcmTaskService 服务?

Question

我有这个代码GcmTaskService服务代码，可以检查互联网是否可以在线推送一些数据：

public class NetworkChangeService extends GcmTaskService {
public static String TAG = "NetworkChangeService";
private static long ONE_HOUR_IN_SECONDS = 3600L;
private static long ONE_MINUTE_IN_SECONDS = 60L;
private Synchronizer synchronizer;
public NetworkChangeService() {
}
@Override
public int onRunTask(TaskParams taskParams) {
// do my task here like syncing stuff
Log.d(TAG, "NetworkChangeService says that Network is Connected...");
saveData(getApplicationContext());
// TODO : Reschedule task in after certain condition (if failure) not to create duplicates
//scheduleTask(NetworkChangeService.this);
return GcmNetworkManager.RESULT_SUCCESS;
}
/**
* Schedule a Task that will be executed on Network Connected to Upload offline Members and Ventes
* @param context Context of the Activity or Application
*/
public void scheduleTask(Context context) {
OneoffTask task = new OneoffTask.Builder()
.setService(NetworkChangeService.class)
.setTag(TAG)
.setExecutionWindow(1L, ONE_MINUTE_IN_SECONDS)
.setRequiredNetwork(Task.NETWORK_STATE_CONNECTED)
.setPersisted(true)
.setUpdateCurrent(true)
.build();
GcmNetworkManager.getInstance(context).schedule(task);
}
@Override
public void onInitializeTasks() {
super.onInitializeTasks();
// Re-schedule periodic task on app upgrade.
scheduleTask(this);
}
public void saveData(Context context) {
// OFFLINE MODE & ONLINE MODE
// Check if there is connection to save data offline
// Check if forceOffline is true then save Offline
int connectionType = NetworkUtil.getConnectivityStatus(context);
// 0 : No Connection, 1 : Mobile, 2 Wifi
if(connectionType > 0) {
if(synchronizer == null)
synchronizer = new Synchronizer();
// Save offline unsaved Members and Ventes
synchronizer.saveMembersOnline();
synchronizer.saveVentesOnline();
}
}
}

现在我不再在应用程序中使用它了。当我删除该类时，该服务仍在后台运行，因此有时应用程序崩溃说

java.lang.RuntimeException: Unable to instantiate service com.ezcoding.sxc.utils.NetworkChangeService

如何完全删除服务？

Answer 1

尝试取消与该服务相关的所有任务，看看会发生什么：

GcmNetworkManager.getInstance(this)
.cancelAllTasks(NetworkChangeService.class)

另一方面，OneoffTask不支持在重新启动后持久化。